Ophthalmic pad and method of manufacturing same



1933- H. J. LANGKNECHT OPHTHALMIC PAD AND METHOD OF MANUFACTURING SAME Filed April 6. 1931 g E A Inn-"T012 flrronm: Y6

' shown at b,, on Figure 6.

a centrallydisposed recess 5, which I prefer to have follow -.the contour, o f thepad 1 in general i i i the part8, after the same has'been assembled Patented Aug. 22, 1933 FACTURING SAME Henry J, Lang knech t, Rochester, N.]Y., assignor Ito Shuron Optical Companmjlnc N. 51., a-Corpcration of New York Geneva,

Application April 6, 1931., Serial-Flo; 522,133

9'Claims; (c1. es-:48)"- This invention relates toa new'and improved ophthalmic pad and method of manufacturing the same. k 1

The main object is to provide a pad which may be manufactured speedily and economically, and the different parts of which may'beassembled together in a ready andeasy manner, and which will remain securediylocked together after the assembling operation.

More specifically, the invention contemplates a novel securernent of a journal bearing to a pad consisting essentially of a single piece of material such as zylonite, celluloid,omother of pearl, ivory, etc.- 1

Other objects and advantages relate to'the details of the manufacturing method and the resultant articleall as will more fully; appear from the following description taken'in connection with the accompanying drawing in whioh:j

Figure l is a perspective view of a spectacle frame embodying myinvention. v

Figure 2 is a perspective view of one my improved pad,

FigureE is a perspective sert for the pad.v Figure 4 is a'section on Figure'5 is a section on line 5'5 of Figure 3. Figure 6 is a sectional longitudinal view of two parts of the pad before'ass'embling, and with the assembling die inpos'ition; Figure "7- is a longitudinal sectional throughthe'completedpad. I I Figuref8 is a' plan view of the rear face of the side of View of the-metal in- View pad showing how the same is secured" to the spec-' tacle frame. I

The pad 1 is adapted to-be used with a spectacle frame having the usual rims 2, temples 3,. and-bridge 4, andmay, as stated, bemade of suitable non-metallic: material.

' Although a pad embodying my invention may be made in various" shapes and forms, I prefer to 'havethe pad'l approximately elliptical in celluloid, zylonite, mother of pearl orany other shape with one face roundedas shown at -a on Figure 6, and with theother face flat, as

11 provide in the flat face 511 a the pad l,

" area of the flat bottom of the recess 5 is greater be used.-

locked securely together.

than the area of the-open end'of the recess 5 and theside' walls overhang the base So that the metal insert for the pad 1, about to be described, may be more securely locked in position and prevented from-turning after it is assembled; I prefer to have the recess 5 oval in shape, although other out-of-round forms may For the purpose of providinga convenient and positive means for attaching the pad 1' to-aspectacle frame, I provide a 'member I 5 of ductile metal having a journal bearingportion 7 made integral with or rigidly secured to a base '8'. The base 8, when in a *flat condition, conforms sub- -stantiallyinsize.andshape to the net bottom of the recess 5. V

. The method used by "me in assembling the member' 6 with the pad 1' is as follows. The bottom portion 8 of member 6 is'sh'aped, pressed or otherwise formed substantially saucer shape or concavo-convex, asindicated in dotted lines, Figures 4 and 5." 'When in thisform, the over-all I. j area of the part 8 is reduced sufiiciently so'that the part 8 may be inserted through the opening p intothe recess 5.- The pad 1 is placedlin posi-q8 line 44" of Figure 3.

tionfon a suitable support 9 indicated "in dotted lines on Figure 6. i The tubularportion 7 of member 6 is inserted in a recess 10 and we die 11,

and the dished'portion 8 of member 6 is inserted into recess 5, and the die'll is then moved downwardly to force the part 8 to the bottomofthe V recess5 and the downward movement of the die 7 11 is'continued to flatten'out the "part 8 so that the same will rest on the 'flat bottom of the recess 5 with its'edge underneath the overhang ing '1 side wall of the recess. Thisflatteningof the part8, as described, will increase its over-all are'a so'that it will be impossible'to remove the s'amethrough" the opening leading to the recess 5, and the member 6 and the pad 1 are thus In Figure 6, the member=6 is shown as about :to be inserted, into the recess 5, and in Figure 7, the member 6 is'illustrated in position in recess 5v with'jthe' part 8 fiatten'edout to rest on the bottom of'the recess 5.

For" the purpose of improving the'appearance g of thepad 1; and for the purpose of covering the 1 part 8 'so that the pad 1 may beamoreeasily cleanedQI prefer to place. onthe outersurfa'ce of 1 inthe' pad 1, a cover plate 12".whichmay be of -zylonite-cemented, or pressed with heat into place, or if preferred, it may be of any other suit- 7 ductile rods 13.

- (iii non-metallic.

Rods l3 carry on theirends a buckle 14. The buckle 1a is approximately square in form and has a tongue or tang extending partially across the same.

The tubular portion '7 of member 6 is of the V proper size to be positioned in the buckle l4, and this is accomplished by bending the frame or boxlike portion of the buckle out of line with the tang so that the latter may be inserted into the tubular part 7, whereupon the frame is bent toward the pad to surround the journal bearing '7 and prevent separation of the parts while in that relative position, This particular connection formsno portion of the present invention.

It will be understood that a pad 1 is ordinarily assembled on both of the rods 13 which extend inwardly from the rims 2.;

I have here shown the pad 1 as applied to what is commonly known as a spectacle frame, but it will be understood that such pad may be used on other types of .frames'such as those commonly known as pince-nez, or others.

'It will also beunderstood that although I have mentioned several materials which may suitably be used in making my improvedpad, numerous other; maybe found to be appropriate for such use, and although I have shown and described a specific structure and form and relation of parts as an exemplification oran embodiment of invent-ion, I do not desire to restrict myself to the details of size, shape or arrangement of parts, or tofthe exact "method here shown of moving thejparts into their final relationship, as

various changes may be made within the scope of the appended claims. e e I claim. V

l. An ophthalmic pad comprising a main body portionhaving a recessin one face, the bottom of-said recess being greater in area than the up: per endthereof, a member seated on the bottom of the recess, said member being greater in area than the area of theupper ,end' of the recess, a

non-metalliccovering overlying the outer face ofsaid member, and on the memberfor attaching the pad'to an eye-glass frame;

'ZQAln ophthalmic pad comprising a main body portion having a recess in one face, the bottom ofsaid reoessbeing greater in area than the up per end thereof, a metallic member seated on the bottom of the recess, said metallicmember being greater in area than the area of the upper end.

of thereoess, a non-metallic covering overlying the outer face of said metallic mernbcr, and means on the metallic member for attaching the padto an eye-glass frame.

, 3, ,An ophthalmic pad comprising a main, body portion having a recessinone face, the bottom of said recessbeing greater in areathantheupper end thereof, 'a member'seated on the-bottom of the recess, said member being greater inarea than the area'of the upper end ofv the recess, a covering overlying the outer face of said member, and a' ring on the member for attaching the pad to an eye-glass frame. 7

l. An ophthalmic pad comprising a main body portion having a recess in one face, the bottom of said recess being greater in area than the upper end thereof, a metallic member seated on the bottom of the recess, said metallic member being greater in area than the area of the upper end of the recess, a non-metallic covering overlying the outer face of said metallic member, and a ringon the metallic member for attaching the pad to an eye glass frame. l

5. In a spectacle or eye-glass frame, a nose pad comprising a non-metallic body portionhaving a recess in the rear surface thereof provided with a substantially flatbottom wall and inward: lyrinclincd'side walls, a bendable metallic member seated in the recess with its edge underlying the inwardly inclined side walls, and a journal rigidly connected to said member.

6. In a spectacle or eye-glass frame, anose pad comprising a non-rnetallic body portion having a recess in the rear surface thereof provided with overhanging walls, a bendable metallic member seated in the recess-wlth-its edges underlying the overhanging walls, a journal rigidly connected to said member, and a non-metallic disk secured upon and covering the outer surface of said memoer.

I Z. Ina spectacle or eye-glass frame, a nose pad comprising a non-metallic body portion having a recess in the rear surface th reof provided with a substantially fiat bottom wall and inwardly inclined side walls, a bendable metallic member seat.- ed in the recess with its edge underlying the inwardly inclined side walls, a jcurnal rigidly con nected to said member, and a nonunetallic disk secured upon-and covering the outer surface of said member; 7

8. The method of producing anophthalmic pad structure comprising forming a recess in'the rear face of a self-sustaining body portion extending partially through the body with the opening leading to the recess of lessarea than the bottom of the recess to provide side wallsoverhanging said base,; shaping a bendable concave-convex metallic member ofja size capable of passing V through the opening leading to'the recess and provided with a journal thereon, insertingsaid member through said opening into said recess and then deforming said member by pressure toexpand its edges underneath said overhanging walls to secure the body and member together. 9. The method of producing an ophthalmic pad structure comprising forming a recess in the rear 7 face of'a self-sustaining bodyportion extending partially through the body with the opening leading to the recess of. less area thanthe bottom of the recess to provide side walls overhangingsaid base, shaping a bendableconcavo-convex metallic member of a size capable of passing through theopening leading to the recess and provided with ajournal thereon; inserting said member through opening into said recess and then deforming said member by pressure to' expand its edges underneath said overhanging, walls to secure the body and membertogether, and then securing'a" non-'znetallic covering over the outer face of said'metallic member. V

* 'HENRY J.'LANG KN ECI- IT. j, 

